Dwyer GSTA-N : Wall Mount Nitrogen Dioxide Transmitter, 10 PPM, Selectable Output Signals: 4-20 mA, 0-5 V, or 0-10 V, Normal or Reverse Output, 5-Year Warranty
The Series GSTA Nitrogen Dioxide Transmitter is designed to monitor gas concentrations in underground parking garages and loading docks, specifically targeting emissions from diesel engines. Featuring field-selectable current and voltage outputs, these transmitters are compatible with nearly any building management controller, making them a versatile choice for air quality monitoring.
To ensure optimal accuracy, the transmitters can be field-calibrated using the optional A-449 Remote LCD Display. Additionally, the display notifies users when the sensor reaches the end of its lifespan, simplifying maintenance and ensuring continuous reliable operation.
Benefits/Features
- Easy Maintenance: Industrial-grade, replaceable electrochemical sensors with a typical lifespan of two years.
- Inventory Efficiency: Field-selectable outputs reduce the need for multiple units.
Applications
- Ventilation monitoring in garages or loading docks.
- Air quality monitoring in mechanical rooms.
Specifications:
| Sensor: | Field replaceable electrochemical, 2 years typical lifespan. |
| Range: | NO2: 10 PPM |
| Output Drift: | <5% per year in air. |
| Coverage Area: | 5000 to 7500 sq ft typical. |
| Accuracy: | NO2: 3% FS, at the time of calibration. |
| Resolution: | NO2: 0.1 PPM. |
| Temperature Limits: | -4 to 122°F (-20 to 50°C). |
| Storage Temperature: | For best sensor life, 32 to 68°F (0 to 20°C). |
| Humidity Limits: | 15 to 90% RH constant; 0 to 99% RH intermittent. |
| Response Time: | <25 s to 90% NO2 |
| Span and Zero Adjustment: | Via onboard push-buttons or using optional A-449 display |
| Housing: | UV resistant glass filled polycarbonate. |
| Output Signals: | GSTA: Switch selectable 4-20 mA (loop powered), 0-5 V @ 5mA, or 0-10 V @ 5 mA; Switch selectable 0-5 V/1-5 V and 0-10 V/2-10 V; Switch selectable normal or reverse output |
| Power Requirements: | GSTA: Current output: 10-35 VDC, Voltage output: 15-35VDC or 15-29 VAC |
| Electrical Connection: | Removable terminal block, knockouts for conduit fitting. |
| Calibration: | Via onboard push-buttons (LCD model only) or using optional A-449 display. Span gas concentration is field selectable. |
| Enclosure Rating: | IP64. |
| Weight: | 1 lb (0.45 kg). |
| Compliance: | CE. |
Datasheets
- Enclosure Style:
- Wall
- Gas Element:
- Nitrogen Dioxide
- Analog Output:
- 1
- Relay Output:
- None
- Communication:
- None
- Display:
- No Display
